MyBB SQL Error

MyBB has experienced an internal SQL error and cannot continue.

SQL Error:
145 - Table './balkania_forum/mybb_sessions' is marked as crashed and should be repaired
Query:
REPLACE INTO mybb_sessions SET `uid`=0,`sid`='ebcc1e68caab026dd3d52c49d701584b',`time`=1711711169,`ip`=X'03ef60e5',`location`='/showthread.php?tid=287&pid=1774',`useragent`='claudebot',`location1`=8,`location2`=287,`nopermission`=0